Improving and Fining of Nanostructures by Mixing W with Mo in Metal Organic Hybrid Crystal

A bialloy-like
multilayered bulk single crystal consisting of [(CH3CH2)3NH)]2­[W0.25Mo0.75O2­(C14H6O4)2] has been synthesized, from which Mo–W-mixed
organic hybrid nanotubes with a diameter of about 50 nm and length
from tens to hundreds of nanometers were prepared by grinding and
ultrasonication. The nanotubes possess the uniformity of Mo-based
nanopipes and the rigidity of W-based nanotubules and are more delicate
and standardized than W-based nanotubules and shorter than Mo-based
nanopipes. Furthermore, the Mo–W-mixed nanotubes are disassembled
into Mo-based nanowires with a diameter of about 5 nm and lengths
in tens of nanometers and W-based nanoparticles with a diameter of
6 nm, which are much finer than the nanoarchitectures produced from
Mo- and W-based crystal isomorphs. This research offers two new methods:
one is the improvement of nanostructures in physical properties and
morphologies by bialloy-like treatment, and another is the refinement
of nanostructures compared with those made from crystal isomorphs
based on one kind of metal, by mixing metals in a crystal lattice.